水土保持通报2026，Vol.46Issue(2)：86-99,14.DOI:10.13961/j.cnki.stbctb.2026.02.026
典型黄土区人工林土壤水分与养分的区域特征
Regional characteristics of soil moisture and nutrients under artificial forests in typical loess regions
摘要
Abstract
[Objective]The variation patterns of soil moisture and nutrients under different artificial forests in the Loess Plateau were analyzed,and the impact of vegetation restoration on ecosystem structure and function was comprehensively evaluated,in order to provide a scientific basis for the sustainable management of regional artificial forests.[Methods]Typical artificial forest plots in loess regions of Gansu Province were selected as research subjects.Using soil moisture data at a depth of 6 meters and soil nutrient data at a depth of 1 meter collected from various regions between August and September 2022,the distribution characteristics of soil moisture and nutrients under different artificial forests in loess regions were analyzed,and the differences in soil moisture and nutrients under artificial forests across different regions were explored.[Results]① In different regions,soil moisture profiles under artificial forests gradually decreased with increasing soil depth,indicating a progressive drying process.However,when artificial forests reached maturity or aging stages,soil moisture partially recovered.Geographically,in loess regions of Gansu Province,the average soil moisture under artificial forests showed an increasing trend from north to south and from west to east.② In terms of soil nutrients,most soils in each region were alkaline,with low contents of organic matter,total nitrogen,total phosphorus,and total potassium.Alkali-hydrolyzable nitrogen was highest in Longxi County and lowest in Zhenyuan County.Available phosphorus was highest in Heshui County and lowest in Tianshui County.Available potassium was highest in Heshui County and lowest in Zhenyuan County.[Conclusion]During vegetation restoration in the Loess Plateau,soil moisture and nutrient distribution characteristics of different microtopographies should be considered,and the planting principle of'right tree in the right place'should be followed to reasonably configure tree,shrub,and grass planting patterns to improve the soil environment.This approach plays a positive role in ecological management in the Loess Plateau.关键词
人工林/土壤水分/土壤养分/黄土区/甘肃省Key words
artificial forest/soil moisture/soil nutrients/Loess Plateau/Gansu Province分类
农业科技引用本文复制引用
马驰,莫保儒,马全林,薛睿..典型黄土区人工林土壤水分与养分的区域特征[J].水土保持通报,2026,46(2):86-99,14.基金项目
国家自然科学基金委员会区域创新发展联合资助项目"黄土高原干旱缺水区综合植被承载力的形成机制及时空变化"(U21A2005) （U21A2005）
甘肃省林业和草原科技创新项目"陇中黄土高原退化林修复及功能提升关键技术研究" （）
甘肃省省级生态文明建设重点研发专项"甘肃黄河'几字弯'低质低效防护林修复与多功能协同提升技术研究与示范"(24YFFA040) （24YFFA040）
中央财政林业草原科技推广示范项目"'三北'工程黄河'几字弯'甘肃片区低质低效防护林修复技术示范推广"(甘[2025]ZYTG06号) （甘[2025]ZYTG06号）
